Fastener for windows



(No Model.)

L. R. HOPKINS.

FASTENER FOR WINDOWS.

No. 590,986. I Patented Oct. 5,1897.-

.mmmm

,- W/TNESSES %NVENTO/7 ATTORNEY.

n4: NORRIS ravens co. moron-run" wnsuwat-on. n c

ending at the step a.

NITED STATES PATENT rriCE.

LYMAN R. HOPKINS, OF BROOKLYN, NEWV YORK.

FASTENER FOR WINDOWS.

SPECIFICATION forming part of Letters Patent No. 590,986, dated October 5, 1897.

Application filed December 7,18%. $erial No. 614,674. (No model.)

To all whom it may cancer/t:

Be it known that I, LYMAN R. HOPKINS, of the city of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Fasteners for Windows and other Like Articles, of which the following is a full, clear, and exact description.

My invention relates to improvements in such devices as are used for retaining win- (low-frames, storm-windows, screens, orother like articles, either adjustable or stationary, in such a mannerthat the same may be readily adjusted or removed.

The object of my invention is to provide a simple and inexpensive. device of this kind which will allow adjustment or removal of the article to which it is attached by slight manipulation thereof and which at the same time is capable of retaining the object securely in its positionuntil it is desired to move the same.

To these ends my invention consists of the combination of parts hereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, referenceto which is had herein, like letters refer to like parts in each view.

Figure l is a perspective side view of afas-.

tener embodying my invention. Fig. 2 is a vertical section of the same through the line 2 2 on Fig. 4. Fig. 3 isa medial transverse section of the fastener through line 3 3 on Fig. 4:, showing the same attached to 'the frame of a window and used as the ordinary window-catch, with the arm in the position shown in Fig. 4. Fig. 4: is a top view of the same, showing the manner in which it is used to retain storm-windows or screens in place.

The base-plate A is oblong in shape, having perforations a Ct at either end, through which screws, staples, or other devices for attaching it to the articles upon which it is used may be passed. The upper surface of the plate is provided medially with a circular inclined plane inclined at an angle of about thirty degrees to the base thereof. The surface of the plate slopes upward in all directions toward this plane, the lower edge of the plane In the center of this plane is an opening extending through the base-plate, the under side of the plate being raised at this point to form a collar A surrounding the opening and adapted to receive the bolt 0, acting as the sleeve therefor and preventing the same from having any lateral motion. The bolt O is threaded at its lower end and provided with a nut O to prevent it from pulling out. The upper end is enlarged and is adapted to retain in place and also provide an axis for the arm B. This arm is provided at its lower end with a flattened. eccentric disk B which has its greatest diameter at right angles to the arm and has an opening I), through which the said bolt O passes. The arm extends a little beyond the end of the base-plate and is slightly curved downwardly, being provided with a rubber tip (or a tip composed of some other suitable material) B, attached thereto by means of the lug b, which passes through its center. The friction-plate D (shown in Figs. 3 and 4) is an ordinary flat piece of steel or other suit able material adapted to receive the im pin gement of the tip B of the arm 13, thus'preventing the said tip from wearing the material of which the article to be fastened is co mposed.

In describing the operation of this device let it be supposed that it is desired to use the same as a means for retaining a windowscreen. The base-plate A is first secured to the window-frame H by passing screws or other means for attaching through the perforations a a and the friction-plate D attached in a similar manner to the frame I of the screen at the point where the tip B will come incontact with the said frame. The arm B now. being in the position shown by the dotted lines in Fig. 4, the screen may be placed in position with its inner side pressed against the window-sash. The arm B is now rotated until it assumes the position as shown in Fig. 4 and also indicated by dotted lines in Fig. l, with the tip pressing against the friction-plate D and the larger side of the eccentric l3 binding against the step a, thus securely holding the frame in its position.

With this fastener the ordinary tongueand-groove arrangement for window-screens may be dispensed with, as the screen shown in Fig. 4. may be raised to any desired height by rotating the arm B until the pressure that after the screen has been raised and the tip of the arm pressed against the frame thereof any tendency of the screen to slip downward will only tighten the hold of the fastener, since the same would rotate the arm and thus cause the tip to come in closer contact. with the frame. The friction-plate D may be extended along the entire side of the frame if desired.

WVhen the fastener is used as an ordinary window-catch, the base-plate A is attached to the inner window-sash and the friction-plate D to the outer one, directly opposite thereto, as shown in Fig. 3. When it is desired to raise or lower the window, the arm Bis placed in a position parallel with the base-plate, and when the Window is to be fasten ed it is rotated se ese again until the tip is pressed firmly into contact with the friction-plate. After this has been done any vertical pressure upon the tip, such as would be exerted thereon when it was attempted to raise the window, would not rotate the arm, but would meet with a direct resistance therefrom.

What I claim is In a fastener for Windows or other like arti- LYMAN R. HOPKINS.

\Vitnesses:

S.J.COX,Jn, F. M. SENIOR. 

